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guajiro [1.7K]
3 years ago
13

If a is negative and b is positive, is a2b positive or negative?

Mathematics
2 answers:
Mice21 [21]3 years ago
8 0

Answer:

Negative

Step-by-step explanation:

Lets look at it with numbers!

a=-2 , b=4

a*2b is -2*2(4)  ---> -2*8 ---> -16

If you multiple a negative and a negative it will be positive, but if you multiply a positive and a negative it will be negative;

+ * + = +

+ * - = -

- * -  = +

I hope this helps!

kolezko [41]3 years ago
6 0

Answer:

negative

Step-by-step explanation:

if you are multiplying with a negative and a positive it will always be negative. if you are multiplying with 2 positives or 2 negatives it will be positive. 2 negatives equalling a positive.

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What is the value of p in the proportion below?
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Answer:

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8 0
3 years ago
Why did I get it wrong ? I’m finding constant B and idk what’s wrong with my step.
Klio2033 [76]

Answer:

\large \boxed{\sf \ \ A=5, \ \ B=-13 \ \ }

Step-by-step explanation:

Hello,

What you did is correct...

(Ax-3)(x-2)=5x^2+Bx+6\\\\\text{*** we develop the left side ***}\\\\Ax^2+(-2A-3)x+6=5x^2+Bx+6

... and you found A by identifying the term in x^2 to get A = 5, right?

<u>What about the other terms?</u>

<u />

We can then identify the like terms:

>>> term in x^2\\

   A = 5

>>> term in x

   -2A+3=B

>>> constant term

   6 = 6

As we know that A=5 it means that B = -2*5-3=-13

Hope this helps.

Do not hesitate if you need further explanation.

Thank you

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